Catalyst – solid sorbent – or support therefor: product or process – Zeolite or clay – including gallium analogs – And additional al or si containing component
Patent
1993-05-28
1995-04-04
Dees, Carl F.
Catalyst, solid sorbent, or support therefor: product or process
Zeolite or clay, including gallium analogs
And additional al or si containing component
502 62, 502 85, B01J 2904, B01J 3702
Patent
active
054038006
ABSTRACT:
A ex situ selectivated catalytic molecular sieve for enhanced shape selective hydrocarbon conversions in which a catalytic molecular sieve is modified by being exposed to at least two selectivation sequences, each sequence including an impregnation of the molecular sieve with a selectivating agent and a subsequent calcination of the impregnated molecular sieve. The ex situ selectivation method is also described, including the use of aqueous carriers for the selecting agent. Also a method for in situ trim-selectivating the modified catalytic molecular sieve. Also, a method for moderate steaming of the selectivated molecular sieve. Also a method for in situ trim-selectivating the modified catalytic molecular sieve. Also described is the process for shape selective hydrocarbon conversion comprising contacting a hydrocarbon feedstream under conversion conditions with the selectivated molecular sieve.
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Beck Jeffrey S.
McCullen Sharon B.
Olson David H.
Dees Carl F.
Kenehan, Jr. Edward F.
McKillop Alexander J.
Mobil Oil Corp.
Santini Dennis P.
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